Question

The causative agent of malaria is:

• A. Plasmodium falciparum
• B. Anopheles mosquito.
• C. Trypanosoma brucei
• D. Entamoeba histolytica

Hint:

Malaria is caused by Plasmodium species, with the female Anopheles mosquito serving as its vector.

Answer 1

The Correct Option is A

Step 1: Malaria Etiology.
Malaria is caused by protozoan parasites of the genus \textit{Plasmodium}. \textit{Plasmodium falciparum} is the most virulent species. 

Step 2: Vector Identification. 
The female Anopheles mosquito transmits \textit{Plasmodium} species, functioning as a vector, not the pathogen itself. 

Step 3: Other Options Analysis. 
Option (B): Incorrect. The Anopheles mosquito is a vector, not the causal organism. 

Option (C): Incorrect. \textit{Trypanosoma brucei} is the causative agent of sleeping sickness. 

Option (D): Incorrect. \textit{Entamoeba histolytica} causes amoebiasis. 

Correct Answer: Plasmodium falciparum